Extension.md

Native Extension

The extension manifest must declare
the  nativeMessaging  permission.

Example

{
    "manifest_version" : 2 ,

    "description" : "A showcase for native messaging." ,
    "version" : "1.0.0" ,
    "name" : "Native Extension" ,

    "background" : {
        "persistent" : true ,
        "scripts" : [ "Script.js" ]
    },

    "permissions" : [ "nativeMessaging" ]
}

» Check out the example